<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>

</body>

</html>
<script>
    var obj = { name:'小王',age:18,sex:true,hobby:['打球','听音乐'] }
    //遍历+递归
    function Copy(obj) {
        var obj2 = Array.isArray(obj) ? [] : {}
        for (var key in obj) {
            if (typeof obj[key] == "object") {
                obj2[key] = Copy(obj[key])
            }
            else {
                obj2[key] = obj[key]
            }
        }
        return obj2
    }
   var res=console.log(Copy(obj)) 
    
</script>